Synology DS425+ 4-Bay Diskless NAS DiskStation

Synology DS425+ 4-Bay NAS DiskStation for Business File Sharing and Backup

The Synology DS425+ is a 4-bay diskless NAS powered by an Intel Celeron J4125 quad-core processor, offering 2.5GbE networking, dual M.2 NVMe SSD slots for cache, and the full-featured DSM operating system for versatile file storage, backup, and private cloud deployment.

Ideal for small and medium businesses seeking a centralized storage solution, the DS425+ suits teams that need reliable network-attached storage for file sharing across Windows, Mac, and Linux environments, IT administrators looking for scalable on-premises backup with versioning, and organizations requiring private cloud alternatives with professional surveillance or collaboration tools.

The DS425+ ships with Synology's industry-leading 3-year limited warranty and carries FCC, CE, RoHS, and multiple international certifications. As part of Synology's DiskStation ecosystem, it integrates seamlessly with Synology's suite of packages including Hyper Backup, Surveillance Station, and Active Backup for Business.

Key Features of the Synology DS425+

• 2.5GbE Networking: Built-in 2.5GbE LAN port plus a 1GbE LAN port deliver fast data transfers to connected clients without requiring additional network hardware upgrades.
• Dual M.2 NVMe SSD Cache Slots: Two M.2 2280 NVMe slots allow you to add SSD read/write cache, dramatically accelerating frequently accessed data and improving overall NAS responsiveness.
• Flexible Drive Compatibility: Supports 3.5-inch SATA HDDs, 2.5-inch SATA SSDs, and M.2 NVMe SSDs, with hot-swappable bays for uninterrupted operation during drive replacement.
• Versatile RAID Support: Choose from Synology Hybrid RAID, RAID 0/1/5/6/10, JBOD, or Basic configurations, with online RAID migration and volume expansion supported for future-proofing storage capacity.
• Comprehensive Backup Solutions: Hyper Backup enables scheduled backups of data and entire system configurations to local or remote destinations, while Active Backup for Business centralizes protection of PCs, VMs, and servers.
• Private Cloud and Collaboration: DSM provides file sync, mobile app access, real-time document editing, and on-premises email hosting so teams can collaborate securely without relying on third-party cloud services.
• Energy Efficient and Quiet Operation: Consumes just 28.25 W under load and produces only 21.6 dB(A) of noise, making it suitable for office environments with scheduled power on/off and Wake on LAN support.

Technical Specifications

• CPU: Intel Celeron J4125, 4-core, 64-bit, 2.0 GHz base / 2.7 GHz turbo
• Hardware Encryption Engine: Yes
• System Memory: 2 GB DDR4 non-ECC (1 slot, expandable to 6 GB with optional D4NS01-4G module)
• Drive Bays: 4 (3.5 inch SATA HDD / 2.5 inch SATA SSD, hot-swappable)
• M.2 Drive Slots: 2 x M.2 2280 NVMe SSD (cache use)
• LAN Ports: 1 x RJ-45 2.5GbE, 1 x RJ-45 1GbE
• USB Ports: 2 x USB 3.2 Gen 1
• Maximum Single Volume Size: 108 TB
• Maximum Internal Volumes: 32
• Supported RAID Types: Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
• File Systems (Internal): Btrfs, ext4
• File Protocols: SMB, AFP, NFS, FTP, WebDAV, Rsync
• Maximum Local Users: 512
• Maximum Shared Folders: 128
• Virtualization Support: VMware vSphere (ESXi 6.5-8.0 U2), Microsoft Hyper-V (Windows Server 2022), Citrix XenServer, OpenStack Cinder
• System Fan: 92 mm x 92 mm x 2
• Noise Level: 21.6 dB(A)
• Power Consumption: 28.25 W (access) / 6.10 W (HDD hibernation)
• Power Supply: 90 W adapter, 100-240 V AC, 50/60 Hz
• Operating Temperature: 0 to 40 degrees C (32 to 104 degrees F)
• Operating Humidity: 8% to 80% RH
• Certifications: FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS, RoHS
• UPC: 846504005994

What's Included

• DS425+ Main Unit x1
• Accessory Pack x1
• AC Power Adapter x1
• AC Power Cord x1
• RJ-45 LAN Cable x2